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v0.8.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
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Tip revision: 802eee95bde72fd0cd0f3a5b2098375a487d1eda authored by Linus Torvalds on 30 December 2013, 00:01:33 UTC
Linux 3.13-rc6
Tip revision: 802eee9
barriers.h 
/*
 * Barriers redefined for RealView ARM11MPCore platforms with L220 cache
 * controller to work around hardware errata causing the outer_sync()
 * operation to deadlock the system.
 */
#define mb()		dsb()
#define rmb()		dsb()
#define wmb()		mb()
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